# Linear Interpolation Master vs Interpolation Calculator Pro

The clearest difference is price: Linear Interpolation Master at Free against Interpolation Calculator Pro's $0.99. Linear Interpolation Master also leads on iOS requirement (11.0 vs 18.5). Interpolation Calculator Pro's advantage is in-app purchases (none vs 3) and ads (none vs shown). On device support there is nothing between them.

Linear Interpolation Master is free to download; Interpolation Calculator Pro costs $0.99 up front. Linear Interpolation Master sells 3 one-off in-app purchases. Interpolation Calculator Pro asks for nothing beyond the download.

Linear Interpolation Master ships an update every 5 months, Interpolation Calculator Pro every 2 months. The most recent releases landed on October 18, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Linear Interpolation Master | Interpolation Calculator Pro |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.7 (176 ratings)](https://appshunter.io/ios/app/linear-interpolation-master/id1433976994/reviews)** | — |
| Number of ratings | **176** | — |
| Positive reviews | 62.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | Free with in-app purchases | — |
| Size | 16 MB | 18 MB |
| Requires iOS | **11.0** | 18.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [VERVE TECHNOLOGIES PTY. LTD.](https://appshunter.io/developer/582523354) | [Jose Ramos Lopez](https://appshunter.io/developer/1833254555) |

## What reviewers say

### Linear Interpolation Master

[App page](https://appshunter.io/ios/app/linear-interpolation-master/id1433976994)

This tool simplifies linear interpolation calculations for industrial commissioning engineers. It features large, easily readable numbers for field use and allows for quick swapping of coordinate systems, such as converting between 4-20mA and 0-100% scales.

**Highlights:** Large number display for field visibility, Quickly swap X and Y coordinates, 4-20mA to 0-100% conversion, 0-100% to 4-20mA conversion

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Generous Tip | $2.99 | one-time |
| Massive Tip | $3.99 | one-time |
| Amazing Tip | $4.99 | one-time |


### Interpolation Calculator Pro

[App page](https://appshunter.io/ios/app/interpolation-calculator-pro/id6751057449)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Linear Interpolation Master free?

Linear Interpolation Master is free to download, with in-app purchases available.

### Is Interpolation Calculator Pro free?

Interpolation Calculator Pro costs $0.99, with no in-app purchases.

### Do Linear Interpolation Master or Interpolation Calculator Pro have ads?

Linear Interpolation Master shows ads; Interpolation Calculator Pro does not.

### Which is updated more often, Linear Interpolation Master or Interpolation Calculator Pro?

Linear Interpolation Master ships an update every 5 months, and Interpolation Calculator Pro every 2 months. Most recently, Linear Interpolation Master was updated on October 18, 2026 and Interpolation Calculator Pro on October 3, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*